Patents by Inventor Yasuyuki Kita

Yasuyuki Kita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120208978
    Abstract: An electrically conductive polymer obtained by oxidative polymerization of a heterocycle-containing aromatic compound as a monomer, wherein the heterocycle-containing aromatic compound is represented by the formula: A-B. In the above formula, A represents a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; B represents a substituted or unsubstituted hydrocarbon aromatic ring group, a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; the ring represented by A and the ring represented by B are directly linked; however, A and B represent structures that are different from each other. The compound can be produced by a coupling reaction using a hypervalent iodine reactant.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: NAGASE CHEMTEX CORPORATION
    Inventors: Yasuyuki KITA, Toshifumi DOHI, Koji MORIMOTO, Yoshiyuki MORITA, Tetsuya HOSOMI, Setsuko ISHIOKA
  • Publication number: 20110190461
    Abstract: A heterocycle-containing aromatic compound represented by the formula: A-B, and an electrically conductive polymer obtained by oxidative polymerization of the heterocycle-containing aromatic compound as a monomer are provided. In the above formula, A represents a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; B represents a substituted or unsubstituted hydrocarbon aromatic ring group, a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; the ring represented by A and the ring represented by B are directly linked; however, A and B represent structures that are different from each other. The compound can be produced by a coupling reaction using a hypervalent iodine reactant.
    Type: Application
    Filed: September 10, 2008
    Publication date: August 4, 2011
    Applicant: NAGASE CHEMTEX CORPORATION
    Inventors: Yasuyuki Kita, Toshifumi Dohi, Koji Morimoto, Yoshiyuki Morita, Tetsuya Hosomi, Setsuko Ishioka
  • Patent number: 7846972
    Abstract: The present invention relates to multimeric oleamide derivatives having connexin 26 inhibitory activities and embraces the dimer oleamide derivatives represented by the following formula (1) or a pharmacologically acceptable salt thereof: where n denotes an integer of 3, 5, or 8. The novel oleamide derivatives of the present invention can be used not only as research reagents, but also in a wide industrial field because they exhibit useful bioactivities such as cancer metastasis/growth inhibition. Thus they have various applications, such as in medicines, supplements, and functional foods, in addition to cancer-preventive and cancer-therapeutic drugs.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: December 7, 2010
    Assignees: The New Industrial Research Organization, Osaka University
    Inventors: Hiroshi Nojima, Yasuyuki Kita
  • Patent number: 7677121
    Abstract: In an apparatus for measuring shapes of both sides of a plate, a measuring apparatus body includes a reference plane of a longitudinal surface plate disposed in an almost vertical state at one end on a metallic bed, a holding mechanism for holding a plate to be measured in almost parallel therewith, and a displacement gauge scanning column. The displacement gauge scanning column includes a first air slide for mounting a first (second) displacement gauge and a second air slide for mounting a third displacement gauge, and is moved in a horizontal axis direction along a pair of V grooves. Moreover, the first (second) air slide is moved in a vertical axis direction. A shape of one of plate surfaces of the plate to be measured is measured by the scan of the first (second) displacement gauge, and at the same time, a shape of the other surface of the plate surface is measured by the scan of the third displacement gauge.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: March 16, 2010
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Shigetaka Akiyama, Shinichi Tanaka, Takanobu Akiyama, Katsunobu Ueda, Yasuyuki Kita
  • Publication number: 20080089924
    Abstract: The present invention relates to multimeric oleamide derivatives having connexin 26 inhibitory activities and embraces the dimer oleamide derivatives represented by the following formula (1) or a pharmacologically acceptable salt thereof: where n denotes an integer of 3, 5, or 8. The novel oleamide derivatives of the present invention can be used not only as research reagents, but also in a wide industrial field because they exhibit useful bioactivities such as cancer metastasis/growth inhibition. Thus they have various applications, such as in medicines, supplements, and functional foods, in addition to cancer-preventive and cancer-therapeutic drugs.
    Type: Application
    Filed: November 1, 2005
    Publication date: April 17, 2008
    Inventors: Hiroshi Nojima, Yasuyuki Kita
  • Publication number: 20070184356
    Abstract: In an apparatus for measuring shapes of both sides of a plate, a measuring apparatus body includes a reference plane of a longitudinal surface plate disposed in an almost vertical state at one end on a metallic bed, a holding mechanism for holding a plate to be measured in almost parallel therewith, and a displacement gauge scanning column. The displacement gauge scanning column includes a first air slide for mounting a first (second) displacement gauge and a second air slide for mounting a third displacement gauge, and is moved in a horizontal axis direction along a pair of V grooves. Moreover, the first (second) air slide is moved in a vertical axis direction. A shape of one of plate surfaces of the plate to be measured is measured by the scan of the first (second) displacement gauge, and at the same time, a shape of the other surface of the plate surface is measured by the scan of the third displacement gauge.
    Type: Application
    Filed: August 7, 2006
    Publication date: August 9, 2007
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHI
    Inventors: SHIGETAKA AKIYAMA, SHINICHI TANAKA, TAKANOBU AKIYAMA, KATSUNOBU UEDA, YASUYUKI KITA
  • Publication number: 20060058379
    Abstract: A connexin 26 inhibitor and a cancer metastasis inhibitor have a cis-oxirane structure and a terminal amide structure as represented by the following general formula (1): where R is a hydrogen atom or a hydrocarbon group, X is one of a hydrogen atom, a methansulfonyl group, an ethansulfonyl group, an acetyl group, a trifluoroacetyl group, a hydroxyl group, an alkoxy group and an amino group; m is an integer of from 4 to 10; and n is an integer of from 4 to 7. This compound is a novel cancer metastasis inhibitor which specifically inhibits the function of connexin 26.
    Type: Application
    Filed: November 28, 2003
    Publication date: March 16, 2006
    Inventors: Yasuyuki Kita, Hiroshi Nojima, Akihiko Ito
  • Patent number: 6013826
    Abstract: A method for an addition reaction with the formation of an additional carbon--carbon bond comprising reacting an .alpha.-halogeno carboxylic acid derivative with an alkene in the presence of a catalyst shown by the general formula (1): ##STR1## wherein R.sub.1 is a lower alkyl group.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: January 11, 2000
    Assignee: Waco Pure Chemical Industries
    Inventors: Yasuyuki Kita, Atsunori Sano, Takahiro Yamaguchi, Masahisa Oka, Masato Matsugi, Kentoku Gotanda
  • Patent number: 5238938
    Abstract: The novel indole derivatives and salts thereof represented by the general formula (1) ##STR1## possess, for example, an inhibitory effect against superoxide (O.sub.2.sup.-) released from the macrophage cells of guinea pig by stimulation and an anti-albuminuria activity against Masugi nephritis, and are useful in various clinical fields as an agent for preventing and treating diseases and cases associated with the above superoxide radical, for example, autoimmune diseases (e.g. rheumatism), arteriosclerosis, ischemic disease, ischemic encephalopathia, hepatic insufficiency and renal insufficiency, and also as an agent for preventing and treating nephritis.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: August 24, 1993
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Tone, Seiji Sato, Hideaki Sato, Katsumi Tamura, Shigeharu Tamada, Kazumi Kondo, Tomoyuki Kawaguchi, Yoshimasa Nakano, Yasuyuki Kita, Shuji Akai, Hiromichi Fujioka, Yasumitsu Tamura, Katsuhide Matoba, Youichi Taniguchi, Shinji Nishitani, Satoshi Hayakawa, Toshinori Kaneyasu, Yoshihiko Ito, Masahiro Murakami